# OSBuild Composer - Operating System Image Composition Services
## CHANGES WITH 12:
* In previous versions support for running remote workers was
broken. This is now fixed and running remote workers is once
again possible. See #568 for more information.
* The job queue and the store are now two separate Go packages.
One of the benefits is that it is now possible to build images
without using the store which is too complicated for some usecases.
* A blueprint name is now checked against the regex
"^[a-zA-Z0-9._-]+$". This is the same limitation as in
lorax-composer.
* All osbuild calls now use the new --output-directory argument.
This change is a must because the old way of retrieving images from
the osbuild store will soon be deprecated.
* Some routes from the weldr API are now implemented in a more
efficient way.
* As always, the team worked hard on improving the tests and the CI.
Contributions from: David Rheinsberg, Jiri Kortus, Lars Karlitski,
Major Hayden, Ondřej Budai
- Liberec, 2020-05-13
